Besicovitch's circle pairs, analytic capacity, and Cauchy integrals for a class of unrectifiable 1-sets. Farag, Hany M. (2000) Annales Academiae Scientiarum Fennicae. Mathematica
Boundary value problems and singular integral equations on Banach function spaces [Book] E. M. Rojas (2015)
Boundary value problems in complex analysis. II. Begehr, Heinrich (2005) Boletín de la Asociación Matemática Venezolana
Bounded Functions With No Spectral Gaps Richard Bieberich (1979) Publications de l'Institut Mathématique